Lana's great-uncle shows her a 40-year-old picture of a drifter who looks exactly like Clark Kent, and a medallion allows Clark to see flashbacks of his father Jor-El, engaged in a doomed love affair.
When an unseen force commits several murders wherever a young woman is present, Mulder suspects that it is the spirit of the woman's former boss who was believed to have committed suicide, but was actually murdered, and he is protecting her.
Mulder and Scully visit a town under attack from killer cockroaches. When Mulder discovers they are not insects but highly complex robots, he questions whether they come from this planet at all.